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在败血症期间使用Roflumilast对心血管的影响:风险或益处?
Gustavo Ferreira Alves1, Junior Garcia Oliveira2, Marcelo Almeida Nakashima2
1Department of Pharmacology, Federal University of Santa Catarina, Florianópolis, Brazil; Department of Neurosciences "Rita Levi Montalcini", University of Turin, Turin, Italy.
European journal of pharmacology
|September 27, 2024
概括
用罗夫米拉斯 (RFM) 抑制固-4 (PDE4) 抑制保护了败血症大鼠免受肝损伤和改善脏血流. 然而,RFM恶化了心血管功能障碍,并没有改善败血症的生存率.
科学领域:
- 心血管生理学心血管生理学
- 药理学 药理学是指药理学的学科.
- 炎症研究 炎症研究
背景情况:
- 固-4 (PDE4) 调节周期性腺单酸盐 (cAMP) 信号传递.
- 像罗夫卢米拉斯特 (RFM) 这样的PDE4抑制剂具有抗炎性质.
- RFM对败血症引起的心血管功能障碍的影响在很大程度上仍未被探索.
研究的目的:
- 为了研究RFM对败血症中心血管崩的影响.
- 评估RFM在败血症期间对多器官损伤的影响.
主要方法:
- 在大鼠中,通过结和穿孔 (CLP) 诱导了败血症.
- 动物在CLP后6小时接受了RFM (0.3 mg/kg) 或载体的皮下注射.
- 心血管参数,器官损伤和血标志物在CLP24小时后被评估.
主要成果:
- 败血症导致低血压,低心率,降低脏血流 (RBF),以及对血管收缩剂的低活性.
- RFM增加了全身cAMP和RBF,减弱了肝脏低 perfusion和损伤,并降低了氧化 (NO) 水平.
- 在败血症大鼠中,RFM加剧了低血压和心动减速,但没有改善血管高活性.
结论:
- 通过RFM抑制PDE4显示出对肝损伤的保护作用,并在败血症中改善 perfusion.
- 尽管有抗炎功效,但RFM恶化了血液动力学不稳定性,并没有防止败血症引起的心血管功能障碍或死亡.
- 建议谨慎使用RFM治疗败血症,因为它对心血管参数的不良影响.
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